A robot teaching pendant system based on network extension technology for soft PLC

Abstract

The present invention discloses a robot teaching pendant system based on network extension technology for soft PLC, including a teaching pendant, a signal transfer box, a KVM network extender and a soft PLC controller, wherein the teaching pendant is connected to the signal transfer box via a non-standard DVI interface, the signal transfer box is connected to the KVM network extender via a network cable above CAT5e, and the KVM network extender is connected to the soft PLC controller via a video cable and a USB cable. Compared with the traditional scheme, the present invention can adapt to the ecological environment of the soft PLC platform; through the non-standard DVI interface, a long-distance control of up to 100 meters can be performed; the present invention solves the problem that the staff of the teaching pendant in the original configuration software mode need to master the technology of the PLC itself and be familiar with the configuration software on the teaching pendant, and only need to master the soft PLC, which has lower requirements for the staff; in addition, since the soft PLC controller has the dual functions of self-generated HMI software and C++ high-level language programming interface, the interface can be written with HMI software or C++ high-level language according to the customer's technical level and different requirements for the interface.

Description

Technical Field

[0001] The invention relates to the technical field of industrial control, and in particular to a robot teaching pendant system applied to soft PLC based on network extension technology. Background Art

[0002] The full name of the teaching pendant is "teaching programming pendant", which is a handheld teaching device used for robot control. In the robot's motion control system, the teaching pendant is connected to the control cabinet or motion controller through a communication cable. By setting the motion parameters and programming the robot's motion path, the robot can work according to the programmed process flow, and the robot's motion can also be monitored, adjusted, and safely stopped in real time. It can also be configured in manual control mode to operate the robot's movement in real time.

[0003] The existing configuration teaching pendant + hard PLC method cannot adapt to the latest data cloud requirements. The Codesys-based soft PLC platform is becoming more and more popular among customers around the world. Based on Windows or Linux operating systems, the existing teaching pendant cannot realize any control functions you want in the soft PLC, and it is controlled through communication cables, with a short operating distance. Summary of the invention

[0004] The purpose of the present invention is to provide a robot teaching pendant system based on network extension technology applied to soft PLC in view of the defects and shortcomings of the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a robot teaching pendant system based on network extension technology applied to soft PLC, and its innovation lies in: comprising a teaching pendant, a signal adapter box, a KVM network extender and a soft PLC controller, the teaching pendant is connected to the signal adapter box through a non-standard DVI interface, the signal adapter box is connected to the KVM network extender through a network cable, and the KVM network extender is connected to the soft PLC controller through a data cable.

[0006] Furthermore, the teaching pendant includes a front shell made of aluminum alloy and a rear shell made of plastic, a liquid crystal screen is arranged on the front of the front shell, the surface of the liquid crystal screen is covered with a touch screen, an emergency stop and power on button is arranged above the liquid crystal screen, an axis-controlled membrane switch is arranged on the side, and a function selection switch is arranged below; a touch pen installation groove is arranged on the top of the rear shell, a touch pen is placed in the touch pen installation groove, a safety enable switch is arranged on the side of the rear shell, and a general signal interface and a USB interface are arranged below the safety enable switch; a control panel and a heat dissipation bracket are arranged between the front shell and the rear shell.

[0007] Furthermore, a buffer silicone ring is also provided on the front shell.

[0008] Furthermore, a wrist strap is also provided on the rear shell.

[0009] After adopting the above structure, the beneficial effects of the present invention are:

[0010] Compared with the traditional solution, the present invention can adapt to the ecological environment of the soft PLC platform; through the non-standard DVI interface, long-distance control of up to 100 meters can be carried out; the present invention solves the problem that the staff of the original configuration software mode of the teaching pendant needs to master the technology of the PLC itself and be familiar with the configuration software on the teaching pendant, and only needs to master the soft PLC, and the requirements for the staff are relatively low; in addition, because the soft PLC controller has the dual functions of self-generated HMI software and C++ high-level language programming interface, the interface can be programmed with HMI software or C++ high-level language according to the customer's technical level and different requirements for the interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the system of the present invention;

[0012] Figure 2 It is a front view of the teaching pendant in the present invention;

[0013] Figure 3 It is a rear view of the teaching pendant in the present invention;

[0014] Figure 4 for Figure 2 Sectional view of AA in the middle;

[0015] Figure 5 It is a software flow chart of the present invention.

[0016] Description of reference numerals:

[0017] 1 teaching pendant, 11 front shell, 12 rear shell, 13 LCD screen, 14 touch screen, 15 emergency stop and start, 16 axis control membrane switch, 17 function selection switch, 18 touch pen installation slot, 19 touch pen, 110 safety enable switch, 111 main signal interface, 112-USB interface, 113 control board, 114 heat dissipation bracket, 115 buffer silicone ring, 116 wrist strap, 2 signal transfer box, 3-KVM network extender, 4 soft PLC controller. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] See also Figure 1-5 A robot teaching pendant system based on network extension technology for soft PLC includes a teaching pendant 1, a signal transfer box 2, a KVM network extender 3 and a soft PLC controller 4. The teaching pendant 1 is connected to the signal transfer box 2 through a non-standard DVI interface, the signal transfer box 2 is connected to the KVM network extender 3 through a network cable, and the KVM network extender 3 is connected to the soft PLC controller 4 through a data cable. Specifically, the present invention presents the control interface edited by the HMI software in the soft PLC in the teach pendant interface, and adopts the HDBASE-T (non-standard DVI interface) technology to extend the working distance between the teach pendant 2 and the soft PLC controller 4 to 100 meters, solving the distance problem between the soft controller and the teach pendant; the present invention can adapt to the latest data cloud requirements, and the soft PLC platform based on Codesys is becoming more and more popular with customers around the world. Based on the Windows or Linux operating system, any control function you want can be realized in the soft PLC, and it can be adapted to the teach pendant product of the soft PLC platform; the KVM network extender 3 adopts the IDD-LINK4-T sending box; the soft PLC controller 4 adopts the PC6970 series; the software part of the present invention includes the master control embedded program in the teach pendant.

[0021] See also Figure 2-4 The teaching pendant 1 includes a front shell 11 made of aluminum alloy and a rear shell 12 made of plastic. A liquid crystal screen 13 is arranged on the front of the front shell 11. The surface of the liquid crystal screen 13 is covered with a touch screen 14. An emergency stop and power on 15 is arranged above the liquid crystal screen 14. An axis control membrane switch 16 is arranged on the side, and a function selection switch 17 is arranged below. A touch pen installation slot 18 is arranged on the top of the rear shell 12. A touch pen 19 is placed in the touch pen installation slot 18. A safety enable switch 110 is arranged on the side of the rear shell 12, and a total signal interface 111 and a USB interface 112 are arranged below it. A control board 113 and a heat dissipation bracket 114 are arranged between the front shell 11 and the rear shell 12. The specific installation method is as follows:

[0022] Assembly process of the front shell of the teach pendant: use tools to tighten the emergency stop switch 15 to the aluminum alloy front shell 11; use 1.6mm thick 3M double-sided tape to stick the LCD screen 13 frame to the touch screen 14. This step uses a screen sticking fixture to ensure that the centers of the LCD screen 13 and the touch screen 14 are aligned; then use 0.8mm thick 3M double-sided tape to stick the touch screen with the LCD screen to the aluminum alloy front shell 11; pass the FPC signal line of the axis-controlled membrane switch 16 through the notch of the touch screen and stick the axis-controlled membrane switch to the touch screen, and ensure that the edges are aligned; then stick the function selection switch 17 to the aluminum alloy front shell.

[0023] Assembly process of the rear shell of the teach pendant: install the safety enable switch 110 on the plastic rear shell 12; align the USB interface 112 with the external port of the plastic rear shell and screw the control board 113 on the plastic rear shell 12 with 4 M3 self-tapping screws; connect the safety enable switch 110 to the corresponding seat of the control board 113.

[0024] Assembly process of front and rear shells: connect the emergency stop switch 15 to the corresponding socket of the control board 113; then connect the LVDS video signal line and the backlight between the control board 113 and the LCD screen; connect the USB signal on the touch screen control card to the USB socket of the main control board; insert the network port on the signal line into the network port socket on the main control board; also insert the 2*9P signal socket into the socket on the main control; after arranging the wiring harness, close the front and rear shells, and then use 11 M3 screws to fix the rear shell to the front shell; now the product installation is complete.

[0025] The main signal interface 111 and the USB interface 112 are soldered onto the control board 113 using a wave soldering process.

[0026] The control board 113 is designed based on MCU STM32F103C8T6 LQFP48 and is implemented using C language as the basic language of embedded programs; MSTAR's 58CDT9 chip is the display main control chip, and VS2005 is the long-distance signal transmission chip to implement the hardware design of the product.

[0027] In this embodiment, a buffer silicone ring 115 is also provided on the front housing 11. The buffer silicone ring 115 is used to insert a cord or can be used as a hanging ring.

[0028] In this embodiment, a wrist strap 116 is also provided on the rear housing 12. The wrist strap 116 is convenient for holding and operating.

[0029] The above description is only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A robot teaching pendant system based on network extension technology applied to soft PLC, characterized by: It includes a teaching pendant, a signal transfer box, a KVM network extender and a soft PLC controller. The teaching pendant is connected to the signal transfer box through a non-standard DVI interface, the signal transfer box is connected to the KVM network extender through a network cable, and the KVM network extender is connected to the soft PLC controller through a video cable and a USB cable.

2. According to claim 1, a robot teaching pendant system based on network extension technology applied to soft PLC is characterized in that: The teaching pendant includes a front shell made of aluminum alloy and a rear shell made of plastic. A liquid crystal screen is arranged on the front of the front shell, and the surface of the liquid crystal screen is covered with a touch screen. An emergency stop and power on button is arranged above the liquid crystal screen, and an axis-controlled membrane switch is arranged on the side, and a function selection switch is arranged below. A touch pen installation groove is arranged on the top of the rear shell, and a touch pen is placed in the touch pen installation groove. A safety enable switch is arranged on the side of the rear shell, and a general signal interface and a USB interface are arranged below the safety enable switch. A control panel and a heat dissipation bracket are arranged between the front shell and the rear shell.

3. A robot teaching pendant system based on network extension technology applied to soft PLC according to claim 2, characterized in that: A buffer silicone ring is also arranged on the front shell.

4. The robot teaching pendant system based on network extension technology applied to soft PLC according to claim 2 is characterized in that: A wrist strap is also arranged on the rear shell.

Images